diff --git a/sysmoOCTSIM/include/instance/dsu.h b/sysmoOCTSIM/include/instance/dsu.h
new file mode 100644
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+++ b/sysmoOCTSIM/include/instance/dsu.h
@@ -0,0 +1,99 @@
+/**
+ * \file
+ *
+ * \brief Instance description for DSU
+ *
+ * Copyright (c) 2018 Microchip Technology Inc.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the Licence at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _SAME54_DSU_INSTANCE_
+#define _SAME54_DSU_INSTANCE_
+
+/* ========== Register definition for DSU peripheral ========== */
+#if (defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__))
+#define REG_DSU_CTRL               (0x41002000) /**< \brief (DSU) Control */
+#define REG_DSU_STATUSA            (0x41002001) /**< \brief (DSU) Status A */
+#define REG_DSU_STATUSB            (0x41002002) /**< \brief (DSU) Status B */
+#define REG_DSU_ADDR               (0x41002004) /**< \brief (DSU) Address */
+#define REG_DSU_LENGTH             (0x41002008) /**< \brief (DSU) Length */
+#define REG_DSU_DATA               (0x4100200C) /**< \brief (DSU) Data */
+#define REG_DSU_DCC0               (0x41002010) /**< \brief (DSU) Debug Communication Channel 0 */
+#define REG_DSU_DCC1               (0x41002014) /**< \brief (DSU) Debug Communication Channel 1 */
+#define REG_DSU_DID                (0x41002018) /**< \brief (DSU) Device Identification */
+#define REG_DSU_CFG                (0x4100201C) /**< \brief (DSU) Configuration */
+#define REG_DSU_DCFG0              (0x410020F0) /**< \brief (DSU) Device Configuration 0 */
+#define REG_DSU_DCFG1              (0x410020F4) /**< \brief (DSU) Device Configuration 1 */
+#define REG_DSU_ENTRY0             (0x41003000) /**< \brief (DSU) CoreSight ROM Table Entry 0 */
+#define REG_DSU_ENTRY1             (0x41003004) /**< \brief (DSU) CoreSight ROM Table Entry 1 */
+#define REG_DSU_END                (0x41003008) /**< \brief (DSU) CoreSight ROM Table End */
+#define REG_DSU_MEMTYPE            (0x41003FCC) /**< \brief (DSU) CoreSight ROM Table Memory Type */
+#define REG_DSU_PID4               (0x41003FD0) /**< \brief (DSU) Peripheral Identification 4 */
+#define REG_DSU_PID5               (0x41003FD4) /**< \brief (DSU) Peripheral Identification 5 */
+#define REG_DSU_PID6               (0x41003FD8) /**< \brief (DSU) Peripheral Identification 6 */
+#define REG_DSU_PID7               (0x41003FDC) /**< \brief (DSU) Peripheral Identification 7 */
+#define REG_DSU_PID0               (0x41003FE0) /**< \brief (DSU) Peripheral Identification 0 */
+#define REG_DSU_PID1               (0x41003FE4) /**< \brief (DSU) Peripheral Identification 1 */
+#define REG_DSU_PID2               (0x41003FE8) /**< \brief (DSU) Peripheral Identification 2 */
+#define REG_DSU_PID3               (0x41003FEC) /**< \brief (DSU) Peripheral Identification 3 */
+#define REG_DSU_CID0               (0x41003FF0) /**< \brief (DSU) Component Identification 0 */
+#define REG_DSU_CID1               (0x41003FF4) /**< \brief (DSU) Component Identification 1 */
+#define REG_DSU_CID2               (0x41003FF8) /**< \brief (DSU) Component Identification 2 */
+#define REG_DSU_CID3               (0x41003FFC) /**< \brief (DSU) Component Identification 3 */
+#else
+#define REG_DSU_CTRL               (*(WoReg8 *)0x41002000UL) /**< \brief (DSU) Control */
+#define REG_DSU_STATUSA            (*(RwReg8 *)0x41002001UL) /**< \brief (DSU) Status A */
+#define REG_DSU_STATUSB            (*(RoReg8 *)0x41002002UL) /**< \brief (DSU) Status B */
+#define REG_DSU_ADDR               (*(RwReg  *)0x41002004UL) /**< \brief (DSU) Address */
+#define REG_DSU_LENGTH             (*(RwReg  *)0x41002008UL) /**< \brief (DSU) Length */
+#define REG_DSU_DATA               (*(RwReg  *)0x4100200CUL) /**< \brief (DSU) Data */
+#define REG_DSU_DCC0               (*(RwReg  *)0x41002010UL) /**< \brief (DSU) Debug Communication Channel 0 */
+#define REG_DSU_DCC1               (*(RwReg  *)0x41002014UL) /**< \brief (DSU) Debug Communication Channel 1 */
+#define REG_DSU_DID                (*(RoReg  *)0x41002018UL) /**< \brief (DSU) Device Identification */
+#define REG_DSU_CFG                (*(RwReg  *)0x4100201CUL) /**< \brief (DSU) Configuration */
+#define REG_DSU_DCFG0              (*(RwReg  *)0x410020F0UL) /**< \brief (DSU) Device Configuration 0 */
+#define REG_DSU_DCFG1              (*(RwReg  *)0x410020F4UL) /**< \brief (DSU) Device Configuration 1 */
+#define REG_DSU_ENTRY0             (*(RoReg  *)0x41003000UL) /**< \brief (DSU) CoreSight ROM Table Entry 0 */
+#define REG_DSU_ENTRY1             (*(RoReg  *)0x41003004UL) /**< \brief (DSU) CoreSight ROM Table Entry 1 */
+#define REG_DSU_END                (*(RoReg  *)0x41003008UL) /**< \brief (DSU) CoreSight ROM Table End */
+#define REG_DSU_MEMTYPE            (*(RoReg  *)0x41003FCCUL) /**< \brief (DSU) CoreSight ROM Table Memory Type */
+#define REG_DSU_PID4               (*(RoReg  *)0x41003FD0UL) /**< \brief (DSU) Peripheral Identification 4 */
+#define REG_DSU_PID5               (*(RoReg  *)0x41003FD4UL) /**< \brief (DSU) Peripheral Identification 5 */
+#define REG_DSU_PID6               (*(RoReg  *)0x41003FD8UL) /**< \brief (DSU) Peripheral Identification 6 */
+#define REG_DSU_PID7               (*(RoReg  *)0x41003FDCUL) /**< \brief (DSU) Peripheral Identification 7 */
+#define REG_DSU_PID0               (*(RoReg  *)0x41003FE0UL) /**< \brief (DSU) Peripheral Identification 0 */
+#define REG_DSU_PID1               (*(RoReg  *)0x41003FE4UL) /**< \brief (DSU) Peripheral Identification 1 */
+#define REG_DSU_PID2               (*(RoReg  *)0x41003FE8UL) /**< \brief (DSU) Peripheral Identification 2 */
+#define REG_DSU_PID3               (*(RoReg  *)0x41003FECUL) /**< \brief (DSU) Peripheral Identification 3 */
+#define REG_DSU_CID0               (*(RoReg  *)0x41003FF0UL) /**< \brief (DSU) Component Identification 0 */
+#define REG_DSU_CID1               (*(RoReg  *)0x41003FF4UL) /**< \brief (DSU) Component Identification 1 */
+#define REG_DSU_CID2               (*(RoReg  *)0x41003FF8UL) /**< \brief (DSU) Component Identification 2 */
+#define REG_DSU_CID3               (*(RoReg  *)0x41003FFCUL) /**< \brief (DSU) Component Identification 3 */
+#endif /* (defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */
+
+/* ========== Instance parameters for DSU peripheral ========== */
+#define DSU_CLK_AHB_ID              4       
+#define DSU_DMAC_ID_DCC0            2        // DMAC ID for DCC0 register
+#define DSU_DMAC_ID_DCC1            3        // DMAC ID for DCC1 register
+
+#endif /* _SAME54_DSU_INSTANCE_ */